Global Registration Service 1.0.0.3 – ‘GREGsvc.exe’ Unquoted Service Path

• Exploit Database
• 11 阅读

• 作者： Emmanuel Lujan
  日期： 2020-12-01
• 类别：

  • local
  平台：

  • windows
• 来源：https://www.exploit-db.com/exploits/49142/

• # Exploit Title: Global Registration Service 1.0.0.3 - 'GREGsvc.exe'Unquoted Service Path
  # Discovery by: Emmanuel Lujan
  # Discovery Date: 2020-11-26
  # Vendor Homepage: https://www.acer.com/ac/en/US/content/home
  # Tested Version: 1.0.0.3
  # Vulnerability Type: Unquoted Service Path
  # Tested on OS: Windows 7 Home Premium x64 
  
  # Step to discover Unquoted Service Path: 
  
  C:\>wmic service get name, pathname, displayname, startmode | findstr /i "Auto" | findstr /i /v "C:\Windows\\" | findstr /i /v """
  
  GREGService GREGServ
  ice C:\Program Files (x86)\Acer\Registration\G
  REGsvc.exeAuto
  
  # Service info:
  
  C:\>sc qc GregService
  [SC] QueryServiceConfig SUCCESS
  
  SERVICE_NAME: GREGService
  TYPE : 10WIN32_OWN_PROCESS
  START_TYPE : 2 AUTO_START
  ERROR_CONTROL: 1 NORMAL
  BINARY_PATH_NAME : C:\Program Files (x86)\Acer\Registration\GREGsvc.exe
  LOAD_ORDER_GROUP :
  TAG: 0
  DISPLAY_NAME : GREGService
  DEPENDENCIES :
  SERVICE_START_NAME : LocalSystem
  
  #Exploit:
  
  A successful attempt would require the local user to be able to insert their code in the system root path undetected by the OS or other security applications where it could potentially be executed during application startup or reboot. If successful, the local user's code would execute with the elevated privileges of the application.